FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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P0720

Test 1:




Test 2-5:




Test 6-8:




Test 9-11:





SYMPTOM
P0720-OUTPUT SPEED SENSOR ERROR

WHEN MONITORED
The transmission gear ratio is monitored continuously while the transmission is in gear.

SET CONDITION
If there is an excessive change in the Output RPM in any gear.

POSSIBLE CAUSES
- OUTPUT SPEED SENSOR SIGNAL CIRCUIT OPEN
- SPEED SENSOR GROUND CIRCUIT OPEN
- OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO GROUND
- OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
- SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE
- OUTPUT SPEED SENSOR
- POWERTRAIN CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS